Insulator.



H. A. COOK.

INSULATOR.

APPLICATION FILED SEPT-26. 1914.

mama 111 1 W: n for HARRY A. COOK, 0F DIXON, NEBRASKA.

INSULATOR.

Specification of Letters Patent,

Patented J an. 18, 191$.

Application filed September 26, 1914. Serial No. 863,729.

To all whom it may, concern:

Be it known that L'Hauin' A. Coon, a citizen of the United States, residing at Dixon, in the countv of Dixon and State of Nebraska. have invented certain new and useful Improvements inInsulators; and I do hereby declare the following tobe a. full, cle 'ar, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. 4

This invention relates .to insulators employed in holding telephone or telegraph line wires and the primary object of the invention is the provision of a reinforced glass insulator which will materially decrease the liability of the breaking of the insulator.

Another object of this invention is the provision of an insulator which has molded therein a foraminous metallic sheet or plate, whereby the insulator will be materially strengthened and the liability of. breaking the insulator such as by boys throwing rocks and striking the same will be reduced.

A still further object of this invention is ,to reinforce an insulator so as to prevent short circuit caused by the insulators being broken which releases the tie wires and allows the telephone wires to drop on other,

wires, and to insert within the body of the non conductive insulator reinforcing metal for holding tight the various parts of the insulator and preventing the same from falling to pieces when cracked thereby eliminating the liability of short circuit as above mentioned.

vllVith the foregoing and other objects in view this invention consists in such novel features of construction, combination and arrangement of parts as will be hereinafter more fully described, illustrated in the accompanying drawings and claimed.

In describing the invention in detail reference will be had to the accompanying drawings wherein like characters designate like or corresponding parts throughout the several views and in which:

v Figure 1 is a side elevation of the improved insulator. Fig. 2 is a bottom plan view of the insulator. Fig. 3 is a cross sectional view through a modified form of the insulator, and Fig. 4 is a cross sectional vievv on the line 44 of' Fig. 3.

Referring more particularly to the drawings, 1 designates the body of the insulator which is constructed of glass or other analogous material and has secured to the'lower end thereof a bell or watershed'2. The body 1- of the insulator is provided with an annular guoove or recess 3 extending entirely about the circumference of the same a short distance downwardly, from its upper end, and also with a secondgroove 4 which extends about substantially one-half of the under surface of the insulator. The groove 4: has seated therein a tie wire 5', which tie Y wire extends interiorly to the insulator body 1 through openings and is connected in any suitable manner to the metallic reinforcing sheet or plate 6.

In Figszl and 2 of the drawings, the me tallic reinforcing strip is shown as wire netting, and it is moldedin the body 1. of the insulator, for strengthening the insulator and preventing the; same from becoming brokenby boys throwing stones against it or other accidents. The body 1 of the insulator has an internally screw threaded opening 7 formed therein, which receives the upper reduced end 8 of the supporting post 9, which is secured to the cross arm 10 of an ordinary telephone line wire supporting post (not shown) In Fig. 4 of the drawings a modified form of the insulatorisshown, which comprises a glass body 20 which has molded therein a cup shaped member 21. The cup shaped member 21 is formed of sheet metal, andit has a plurality of tongues 22 formed thereupon, which are provided for engaging the glass or other analogous material of which the insulator holdingthe cup shaped reinforcing member 21 in its proper position within the insulator. The body 20 also has a groove 23 formed annularly therein, ,vided for attachment to the insulator of an 'ordinarytie wire such as is at present used.- The insulator 20 has a tie wire secured thereto which is similar to the tie wire trated in wire 24 is securely connected iii any suitable manner to the cup-shaped reinforcing memwhich groove is pro body 20 is formed, for securely Fig.1 of the drawings. This tie entitled providmlsuch alterations :ire comprehended within the scope of; What is claimed.

What is claimed is body constructed of glass and having :1 metullic cup sliepeil. reinforcing member molded within the body of the insulator for strengthening the same, and tie Wires carried by said insulator body and connected to suid metallic reinforcing member.

:3. In aninsulatorstructure, an insulator Jmrlv coustruetecl'of glass, a metallic reini an insulator structure, an insulator forcing member molded within said insular tor, said metallic reinforcing member having a plurality of tongues ii'ormed thereupon for engagement with the glass, and lie wires secured to said metallic reinforcing member and projecting out of said insuluim' lunly.

In testin'iony whereof 1 Mix my signature in presence of two witnesses.

HARRY A. COOK.

Witnesses:

H. N. DUNIE, J. H. BRIDGE. 

